Fire-extinguisher



I. W. ADAMS. FIRE EXTINGUISHER. APPLICATION FILED JUNE 10. 1918.

1,359,478. Patented Nov. 23, 1920.

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' invmew. ADAMS,

nn'rnorr, MICHIGAN,

015 DETROIT, MICHIGAN, ASSIGN'OR T0 ADAMS X-RAY $0., 01

A CORPORATION OF MICHIQAN.

FIRE-EXTING'UISHER income.

Specification of Letters Fatent.

Patented Nov. 23, 1920.

Application filed June 10, 1918. Serial No. 239,099.

sidin at Detroit, county of Wayne, State of l ichigan, have invented a certain new and useful Improvement in Fire-Extinguishers, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification. 7

My invention relates to fire extinguishers and an object of my improvements is to provide a cheap and strong construction for the body of the fire extinguisher.

In the accompanying drawings:

Figure 1 is a side elevation of a fire extinguisher embodying my invention.

Fig. 2 is a sectional view of the body of the same on a larger scale, part being cut away.

Fig. 3 is a plan view of the same.

Fig. l is a detail plan view of a part of the seam in the side wall.

Fig. 5 is a plan View of the side wall adj acent to the end.

The body oi the fire extinguisher consists of cylindrical side walls a and outwardly convex ends 5 and c. The cylindrical portion a is made of a single sheet of steel having its edges turned inward at right angles and abutting as shown in Figs. 3 and 5. These edgesare then welded together.

The end pieces 5 and c are convex, their edges being turned upward as shown most distinctly in Fig. 2 so as to fit accurately into the circular ends of the cylindrical portion a. The flange 01, formed by the turned-up edge of the end pieces or heads 5 and c is indented as shown at f (Fig. 4) so as to allow the bead formed by the inturned edges of the body to fit closel against the flange as shown in Fig. 3. his construction brings the rip-turned flanges (i of the end pieces parallel with and against the wall of the body at, their edges being adjacent. This gives a construction that may be welded and the joint formed between the ends and side walls adjacent to the inturned beading at the junction of the edges of said side wall constitute a construction that may be conveniently welded.

To make the welding process eflective I form a beard m around the inner end of the nozzle so as to have the same amount of metal in the parts to be welded.

T have used and contemplate using the above described invention in connection with a fire extinguisher butof course it is applicable to all vessels for containing fluids under pressure and such application is within the scope of my invention.

What I claim is: V

1. In an apparatus of the kind described, a body constructed of a single piece of sheet metal bent into cylindrical form and provided with longitudinal marginal edge portions extending laterally of the body, said edge portions being welded together, and an end head interfitting with the body and providing a marginal flange, said flange being corrugated to provide a recess to receive said laterally extending marginal edge portions of the body, the flange of the head and one end portion of the walls of the body bein welded together.

2. Tn an apparatus of the kind described, a body constructed of a single piece of sheet metal bent into cylindrical form and provided with inwardly extending longitudinal marginal edge portions, said edge portions being welded together, and an end head having its edge portion turned outward to form a flange and fitting into the cylindrical body, said flange being secured to the walls of the body and provided with an indentation to receive the inwardly extending marginal edge portions of the body.

lln testimony whereof, I sign this specification.

' IRVING W. ADAMS. 

